Stovepipe-joint



J. WATSON.

' STOVEPIPEIOINT.

APPLICATION m50 FEB. 20. i920.

Patented Apr. 26, 1921.

'Iliff/111111,11. r A' UNITED STATES PATENT OFFICE. y

J' AMES WATSON, OF MARINETTE, WISCONSIN.

STOVEPIPE-JOINT.

To all 207mm t may concern.'

Be it known that I, JAMES lVA'rsoN, a citizen of the United States, residing at darinette, in the county of Marinette and State oit lllisconsin, have invented a new and useful Stovepipe-Joint, of which the following is a specir'ication.

It is the object of this invention to provide a. novel form of oldable joint, adapted to be used in a folding stove pipe, or upon a structure of any other kind, calling for a joint oip4 the sort hereinafter described. n

The invention aims to provide a joint which will be braced and reinforced when two members are disposed at right angles to each other.

Another object of the invention is to provide a foldable joint of novel form wherein a hinge rod or pintle may be dispensed with.

It is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the invention appertains.

W'ith the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings Figure 1 discloses in elevation, a flue or stove pipe embodying the invention, parts being broken away; Fig. 2 is a section taken on the line 2 2 of Fig. 1; Fig. 3 is a sectional view taken on the line 2 2 of Fig. 1, but showing the parts as they will appear when folded together and when extending in the same direction; Fig. 4 is a section taken on the line 2-2 of Fig. 1 but showing the parts as they will appear when they have been opened out, to extend in opposite directions; Fig. 5 is a perspective view showing one member of the joint; Fig. 6 is a perspective view showing the other member of the joint; Fig. is a Jfragmental elevation showing a slight modification in the invention; and Figs. 8 and 9 are diagrams, showing, respectively, the iue folded flat and opened up for use.

Referring particularly to Figs. 3, 2, 4, 5, and 6 of the drawings, the numeral 1 de- Specicaton of Letters Patent.

Patented Apr. ,26, 1921.

Application led February 20, 1920. Serial No. 360,266.

notes a first member having a first troughshaped bead 2, the numeral 3 denoting a second member having a second troughshaped bead 4 received within the first bead 2. The beads 2 and 4 are resilient, and this observation applies peculiarly to the bead 2. Let it be supposed that the members 3 and 1 are folded together, as shown in Fig. 3. Then, owing to the resiliency of the beads 2 and 4, when the members 1 and 3 are'disposed substantially at right angles to each other, as shown in Fig. 2, the outer edge 5 or" the first bead 2 engages the second member 3, the bead 2 being distorted out of its normal cylindrical form, to permit the inner portion 6 of the first bead 2 to bind iesiliently against the second bead 4. The construction is such that the members 1 and 3 are clamped or held firmly but yieldingly in rectangular relation to each other, as shown in Fig. 2. The resiliency of the beads 2 aiid 4 permits the members 1 and 3 to be disposed in oppositely extended relation, as depicted in Fig. 4, the outer edge 7 ofthebead 4 being received within the bead 2, and the outer edgey 5 of the bead 2 being received within the bead 4.

The beads 2 and 4 are of circular cross section, the bead 4 being telescoped within the bead 2. In order to prevent relative longitudinal movement between the beads 2 and 4, openings 8 are fashioned in the members 1 and 3, relatively near to the respective beads, the said members having slots 9 communicating with the openings, the slots permitting a ring 10 to be placed in the openings 8, the ring surrounding the beads 2 and 4. The ring 10 may be alluded to as an annular securing device preventing relative longitudinal movement between the beads 2 and 4, and after this ring or securing device has been mounted in the openings 8, the slots 9 may be closed by spot welding or otherwise.

The device hereinbefore described may be embodied in a collapsible flue, as shown in Fig. 1, such a iiue being adapted for use on camping stoves and for other purposes, although the joint, it is to be understood, is of general application. If the structure is embodied in a flue, then the members 1 and 3 may be provided, each, at one end, with an inset tongue 11, the construction being such that the upper end of one section of a flue may be telescoped within the lower end of a superposed section of the flue, an operation which Will be understood readily lwhen Fig. 1 is noted.

In the modification shown in Fig. ',7, parts hereinbefcre described have been. designated by numerals previously used, With the suffix (17. In this form of the invention, the slots 9 are omitted, the ring l0 preferably being fashioned from a length of Wire having its ends hooked together', or otherwise engaged, as indicated at 14.

In either form of the invention, when the flue is set up, the ends of the beads abut, as shown at 12a. y The fluemay be folded flat, as shown in' F ig. 8, Fig. 9 showing the flue opened into rectangular form for use.

Having thus described the inventionvhat is claimed is l. A oint comprising a first member having a first trough-shaped bead; and a second member having a second trough-shaped bead received Within the first bead, one of the beads being resilient whereby when the members are disposed substantially at right angles to each other and when the outer edge of the first bead engages the second member, one-of the' beads will be distorted to permit the inner portion of the first bead to bind resiliently against the second bead, theV resiliency of the vresilient bead permitting the rst and second members to be disposed Vin oppositely extended relatioei, with the outer edge of each bead located VWithin the contourof the other bead.

2. A joint comprising a iirst member having a first trough-shaped bead; a second member having a second trough-shaped bead received Within Vthe iirst bead, one of the beads being resilient whereby when the members are disposed substantially at right angles to each other and when the outer Vedge of the irst bead engages'the second vsecond members being provided With openings; and an annular securing device engagedin the openings and surrounding the beads, the securing device constituting4 means forV limiting relative longitudinal movement y between the beads.

'3. A jointr comprising irst and second members provided with troughshaped beads, the bead of one member being hingedly received Within the bead of the other member, the Vsaid members having openings; and an annular securing device surrounding the beads and received in the openings, the securing device constituting means for limiting relative longitudinal movement betiveen the beads. y f

In testimony that I claim the foregoing as my own, I have hereto aiiixed my signature in the presence of two'vvitnesses.

JAI'IES WATSON.

Vitnesses: Y

HATTIE THonssoNE, EDW. DoRAN. 

